Improvement in wind-wheels



dem sala LEONARD FISCHER-or soNoRA, oALrFoinNiA.

Letters Patent No. 97,492, dated! December 7, 1869.

IMPRQVEMENT 1N WIND-WHEELS.

i vThe Schedule referred to lu these VLetters Patent 'and making part o'f the sanne.

To all whom it may concern:

Be` it known that I', LEONARD Frsounn, o f Sonora, Tuolumne county, State of California, have invented anew and improved Windmill and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and letters marked thereon.-

The object of my invention is'to provide a new and improved device, to` be actuated and controlled by the wind, for causing windmills to inove at a nearly uniform velocity.

The accompanying drawing represents a perspective view of my machine, in which- A is as'uitable frame.

B, an ordinary wind-wheel. S, the wind-wheelshaft. S S. are two shafts'situated in the same, horizontal plane, having Ythe line of their axes at right. angles to,

' in the line of their intersection.

The shaft S1 is also provided with a large vane, V1, and a small vane, o', and arm al, in the same manner. as the shaft S2. To the opposite end ot shaft S* is iixed a second arm, c, and weight, w. From the frame A project arms :c c', upon which the'vanes b and b rest when in a horizontal position. l

`Therelative position of the shafts SPS2 is such that when the vaneb is in a horizontal position, the vane b is vertical, and vice morsaJ and, if the vertical vane is by any force caused to move down toward its horizoutalposition, motion will be communicated, by means ot' the gear G', to the horizontal vane, and cause it'v to mote with the same angular velocity toward the perpendicular;

The whole of thc .above-described apparatus, when in use, Vis to be free to revolve around a vertical axis A windmill passing through its centre 'of gravity. constructed in this manner, when exposed to the action of alight wind, would be found with the vane b' iu a vertical posit-ion, in a plane parallel to the face of the 'wind-wheel B, and the correspondingl position of the other vanes would bein planes parallel to the axis ot' the shaft S, and the vanes b and -r being in horizontal planes, would have their edges presented to the wind, and the whole apparatus would assume such a position that the action of the wind ou the vanes 'a' and b would he equal, and, however strongly the wind might blow, it would have no tendency to change the position until it became sufficiently strong to raise the weight w; but when the weight also begins to rise with an increasing wind, the face of the vane r becomes exposed to its action, and the vane l, being turned toward ahorizontal position, exerts less power, and theapparatns is thus caused to. turn cuits vertical axis, until theforce-of the wind on the valles b and -r is exactly' balanced by the force exerted on the vanes.

b' and r', thus causing -the wind-wheel to intercept a smaller area of the wind-current inV inverse proportion to the force of the wind. As the wind decreases, the weight brings the. vanes hack toward the original position, thus equ'alizug the effect ot' high or lou' winds to anyrequired degree, determined by t'hc size and proportion of the diii'erent parts ofthe machinery.

Having` thus described my invention,

VS/'hat l claim, and desire to secure by Letters Patent, is-

The self-regulating apparatus described, consisting essentially of the shafts SS2, the unter-gear G G, the vanes c c b l1', and the weighted arm a?, the whole being combined substantially iu the manner and for the purpose described.

-In witness whereof, I have hereunto set my hznul and seal. LEONARD FISCHER. [a s] Witnesses Y O. W. hLSMrru, H. S. TIBBEY. 

